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• Page 10 <br /> * The sample acquired from MW-1 on 9/30/94 was also free of <br /> detectable concentrations of Total Chromium (Method <br /> Detection Limit : 0 . 5 ppm) <br /> TPH-D. . .Total Petroleum Hydrocarbons as Diesel <br /> TPH-G. . .Total Petroleum Hydrocarbons as Gasoline <br /> TOG. . .Total Oil and Grease <br /> BTEX . .Benzene, toluene, ethylbenzene, total xylenes <br /> ppm. . . Parts per million <br /> ppb. . Parts per billion (1 ppm = 1 ,000 ppb) <br /> N.D . .Not detected <br /> N.A. . . No analysis performed <br /> SUMMARY OF OTHER ENVIRONMENTAL ACTIVITIES PERFORMED DURING <br /> THE PAST QUARTER <br /> The direction of groundwater flow and hydraulic gradient <br /> have been calculated for the December, 1994 sampling event . <br /> Groundwater continues to flow to the northeast . Information <br /> regarding the methodology used to determine the direction <br /> of flow and hydraulic gradient is presented in Appendix B. <br /> The soil storage piles maintained on site have been <br /> recovered monitored to confirm that the polyethylene <br /> sheeting covers remain intact . New sheeting has been <br /> placed on the soil as necessary <br /> EPM submitted information concerning the 40 cubic yards of <br /> stored soil to the San Joaquin Valley Unified Air Pollution <br /> Control District (SJVUAPCD) during December , 1994 in order <br /> to determine whether that agency would require a permit for <br /> the bioremediation of the soil after it was moved to 2360 <br /> East Street . On January 4, 1995 , Mr. Anthony Mendes , <br /> SJVUAPCD Permit Services Manager , wrote Mr Michael Infurna <br /> (PHS/EHD) advising that no permit will be required. EPM <br /> also submitted an executive summary to Mr. Infurna <br /> describing the proposed remediation. <br /> ENVIRONMENTAL COMPLIANCE ACTIVITIES SCHEDULED FOR THE NEXT <br /> QUARTER <br /> EPM expects to bioremediate the 40 cubic yards of soil <br /> excavated at 275 Grant Line site on February 22 , 1994 after <br /> moving it to 2360 East Street at the end of the public <br /> notification period prescribed by PHS/EHD It is expected <br /> that the treatment period will not exceed 60 days Also , <br /> EPM has requested PHS/EHD approval to dispose of the <br /> monitoring well purge water presently stored on site by <br /> • using it to water the blo-treatment bed. <br />